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Allow read-only methods to work against a frozen StringIO #427

Allow read-only methods to work against a frozen StringIO

Allow read-only methods to work against a frozen StringIO #427

Triggered via pull request February 20, 2025 17:07
Status Failure
Total duration 1m 29s
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macos-14 3.0
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Error: test/stringio/test_stringio.rb#L399
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x000000010f97c100>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:399:in `test_closed'
Error: test/stringio/test_stringio.rb#L410
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x0000000120087778>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:410:in `test_closed_read'
Error: test/stringio/test_stringio.rb#L421
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x000000010f8b9c68>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:421:in `test_closed_write'
Error: test/stringio/test_stringio.rb#L1073
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x0000000120199dc8>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:1073:in `test_eof'
Error: test/stringio/test_stringio.rb#L1097
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x00000001201325b0>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:1097:in `test_external_encoding'
Error: test/stringio/test_stringio.rb#L1088
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x000000010f95ca08>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:1088:in `test_fileno'
Error: test/stringio/test_stringio.rb#L1120
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x000000010f8c1c88>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:1120:in `test_initialize_copy'
Error: test/stringio/test_stringio.rb#L334
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x0000000120181bd8>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:334:in `test_isatty'
Error: test/stringio/test_stringio.rb#L448
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x0000000120139ab8>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:448:in `test_lineno'
Error: test/stringio/test_stringio.rb#L1081
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x000000010f9370a0>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:1081:in `test_pid'
Error: test/stringio/test_stringio.rb#L399
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x00007fc5149975d8>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:399:in `test_closed'
Error: test/stringio/test_stringio.rb#L410
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x00007fc514859590>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:410:in `test_closed_read'
Error: test/stringio/test_stringio.rb#L421
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x00007fc5149ce858>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:421:in `test_closed_write'
Error: test/stringio/test_stringio.rb#L1073
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x00007fc5158f3220>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:1073:in `test_eof'
Error: test/stringio/test_stringio.rb#L1097
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x00007fc51501b030>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:1097:in `test_external_encoding'
Error: test/stringio/test_stringio.rb#L1088
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x00007fc51495f908>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:1088:in `test_fileno'
Error: test/stringio/test_stringio.rb#L1120
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x00007fc5158cca08>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:1120:in `test_initialize_copy'
Error: test/stringio/test_stringio.rb#L334
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x00007fc51504a8d0>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:334:in `test_isatty'
Error: test/stringio/test_stringio.rb#L448
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x00007fc515021f70>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:448:in `test_lineno'
Error: test/stringio/test_stringio.rb#L1081
FrozenError: can't modify frozen String: "Exception raised:\n<#<FrozenError: can't modify frozen StringIO: #<StringIO:0x00007fc51493e8c0>>>\nBacktrace:\n" /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `<<' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:232:in `block in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:63:in `block in message' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:235:in `rescue in assert_nothing_raised' /Users/runner/work/stringio/stringio/vendor/bundle/ruby/2.7.0/gems/test-unit-ruby-core-1.0.6/lib/core_assertions.rb:226:in `assert_nothing_raised' /Users/runner/work/stringio/stringio/test/stringio/test_stringio.rb:1081:in `test_pid'